Pulmonary trunk Arises from right ventricle Runs up back and to the left Bifurcates inferior to aortic arch into right and left pulmonary arteries, one for each lungPulmonary trunk ◼ Arises from right ventricle ◼ Runs up, back ,and to the left ◼ Bifurcates inferior to aortic arch into right and left pulmonary arteries, one for each lung